CN208970563U - A kind of display panel and display device - Google Patents
A kind of display panel and display device Download PDFInfo
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- CN208970563U CN208970563U CN201821993916.1U CN201821993916U CN208970563U CN 208970563 U CN208970563 U CN 208970563U CN 201821993916 U CN201821993916 U CN 201821993916U CN 208970563 U CN208970563 U CN 208970563U
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Abstract
The utility model provides a kind of display panel and display device, the wherein display panel, including array substrate, the Organic Light Emitting Diode oled layer being arranged in array substrate, and the encapsulated layer of covering oled layer, wherein: oled layer includes feux rouges pixel, green light pixel and blue light pixel, and at least there is one luminescent layer and the light that can be issued luminescent layer to be converted into the first quantum dot layer of pre-set color light in feux rouges pixel and green light pixel；The second quantum dot layer corresponding with the first quantum dot layer is equipped in encapsulated layer.Display panel provided by the utility model, by being provided with the first quantum dot layer in oled layer, the second quantum dot layer corresponding with the first quantum dot layer is set in encapsulated layer, the light that luminescent layer is issued can effectively be absorbed and obtain the higher feux rouges of excitation purity and/or green light, improve colored display quality, while converting photons efficiency and energy utilization rate can also be improved.
Description
Technical field
The utility model relates to field of display technology more particularly to a kind of display panel and display devices.
Background technique
Quantum dot (Quantumdot, QD) is a kind of material that can be applied to field of display technology.When by light or electricity
Excitation when, quantum dot can issue coloured light, and have many advantages, such as that luminescent spectrum is concentrated, excitation purity is high, fluorescence lifetime is long, often
It applies in Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) display panel, to change
The colour gamut of OLED display panel.
In existing OLED display panel, usually using blue light-emitting as back end light source, go out light in blue light-emitting
Direction setting can absorb blue light and convert blue light into the quantum dot layer of feux rouges or green light, realize eventually by mixing three primary colors
Colour display.
But the OLED display panel of such structure, often there is a problem of that excitation purity is bad, especially with feux rouges pixel and
The problem of green light pixel, is more obvious.
Utility model content
In view of the above-mentioned drawbacks in the prior art, the utility model provides a kind of display panel and display device, can
Improve excitation purity.
To achieve the above object, on the one hand the utility model provides a kind of display panel, including array substrate, setting in battle array
Organic Light Emitting Diode oled layer on column substrate, and the encapsulated layer of covering oled layer, wherein oled layer includes feux rouges picture
Element, green light pixel and blue light pixel, and at least one has luminescent layer and can will shine in feux rouges pixel and green light pixel
The light that layer is issued is converted into the first quantum dot layer of pre-set color light；It is equipped in encapsulated layer corresponding with above-mentioned first quantum dot layer
The second quantum dot layer.
Further, orthographic projection of second quantum dot layer in array substrate covers the first quantum dot layer in array substrate
Orthographic projection.
Further, encapsulated layer includes the organic film and inorganic film being arranged alternately, and the setting of the second quantum dot layer is having
In machine film layer.
In some examples of the utility model, feux rouges pixel includes blue light-emitting and can convert blue light into feux rouges
The first red light quantum point layer；Green light pixel includes blue light-emitting and the first green light amount that can convert blue light into green light
Son point layer；Second quantum dot layer includes the second red light quantum point layer corresponding with the first red light quantum point layer, and with it is first green
The corresponding second green light quantum point layer of light quanta point layer.
Further, the second red light quantum point layer and the setting of the second green light quantum point layer same layer or different layer are arranged.
In other examples of the utility model, feux rouges pixel includes white-light emitting layer and can be converted to white light red
First red light quantum point layer of light；Green light pixel includes white-light emitting layer and the first green light that white light can be converted to green light
Quantum dot layer；Second quantum dot layer includes the second red light quantum point layer corresponding with the first red light quantum point layer, and with first
The corresponding second green light quantum point layer of green light quantum point layer.
Further, blue light pixel includes white-light emitting layer and the first blue light quantum that white light can be converted to blue light
Point layer；The second blue light quantum point layer corresponding with the first blue light quantum point layer is additionally provided in encapsulated layer.
Further, orthographic projection of the second blue light quantum point layer in array substrate covers the first blue light quantum point layer in battle array
Orthographic projection on column substrate.
Further, the second red light quantum point layer, the second green light quantum point layer and the setting of the second blue light quantum point layer same layer.
On the other hand the utility model provides a kind of display device, including display panel described in first aspect.
Display panel provided by the utility model, by being set in the feux rouges pixel and/or green light pixel in oled layer
The first quantum dot layer is set, the second quantum dot layer corresponding with the first quantum dot layer is set in encapsulated layer, makes the second quantum dot layer
Further absorb and convert the light for not absorbed and being converted by the first quantum dot layer.Compared with prior art, the utility model is not
The higher feux rouges of excitation purity and/or green light can be only obtained, to improve the colored display quality of display panel, and can be mentioned
Converting photons efficiency and energy utilization rate.
Further, since the second quantum dot layer is arranged inside encapsulated layer the utility model, therefore shown with the prior art
Show that the light-emitting surface setting optical filter of panel is compared, also reduces the thickness of display panel.
Display device provided by the utility model has and above-mentioned display surface due to including above-mentioned display panel
The identical advantage of plate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram one of display panel in the utility model embodiment one；
Fig. 2 is the structural schematic diagram two of display panel in the utility model embodiment one；
Fig. 3 is the structural schematic diagram one of display panel in the utility model embodiment two；
Fig. 4 is the structural schematic diagram two of display panel in the utility model embodiment two；
Fig. 5 is the structural schematic diagram three of display panel in the utility model embodiment two；
Fig. 6 is the structural schematic diagram one of display panel in the utility model embodiment three；
Fig. 7 is the structural schematic diagram two of display panel in the utility model embodiment three.
Description of symbols:
100- array substrate；200-OLED layers；
210- feux rouges pixel；220- green light pixel；
230- blue light pixel；240- luminescent layer；
241- blue light-emitting；242- white-light emitting layer；
The first quantum dot layer of 250-；251, the first red light quantum point of 251'- layer；
252, the first green light quantum point of 252'- layer；253'- the first blue light quantum point layer；
300- encapsulated layer；The second quantum dot layer of 310-；
311, the second red light quantum point of 311'- layer；312, the second green light quantum point of 312'- layer；
313'- the second blue light quantum point layer；320- organic film；
330- inorganic film.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.In the absence of conflict, following implementation
Feature in example and embodiment can be combined with each other.
As described in the background section, quantum dot is used for OLED display panel, is commonly present the bad problem of excitation purity, sent out
Bright people the study found that generate the above problem the reason of be, the quantum dot layer being arranged on the light-emitting layer can not achieve blue light or
The effective absorption and conversion of other color of light.By taking feux rouges pixel as an example, usually using blue light-emitting as back end light source, in indigo plant
Setting can absorb blue light and convert blue light into the quantum dot layer of feux rouges on the light direction of light luminescent layer.But quantum dot layer
In quantum dot between can have gap, make a small amount of blue light passed through from the gap and not by quantum dot absorb and be converted into red
Light, so that the excitation purity for not only resulting in feux rouges is bad doped with a small amount of blue light in the feux rouges for issuing feux rouges pixel, but also
Reduce blue light utilization rate.
To solve the above problems, the utility model embodiment in encapsulated layer by being arranged and the first quantum in oled layer
Corresponding second quantum dot layer of point layer makes not by the first quantum dot layer absorbs and convert light in process encapsulated layer, by the
Two quantum dot layers are absorbed and are converted, and so as to obtain the higher light of excitation purity, improve the colored display matter of display panel
Amount.
Embodiment one
Fig. 1 and Fig. 2 are please referred to, the present embodiment provides a kind of display panels, including array substrate 100, setting are in array base
Organic Light Emitting Diode oled layer 200 on plate 100, and the encapsulated layer 300 of covering oled layer 200, in which:
Oled layer 200 includes feux rouges pixel 210, green light pixel 220 and blue light pixel 230, and feux rouges pixel 210 and green light
At least one has luminescent layer 240 and the light that luminescent layer 240 is issued can be converted into the of pre-set color in pixel 220
One quantum dot layer 250；
Second quantum dot layer 310 corresponding with the first quantum dot layer 250 is equipped in encapsulated layer 300.
Specifically, above-mentioned array substrate 100 can be thin-film transistor array base-plate comprising underlay substrate and setting
Thin film transistor (TFT) on underlay substrate.Wherein, underlay substrate such as can be the flexible base boards such as polyimides, be also possible to glass
The rigid substrates such as glass.Thin film transistor (TFT) is for driving feux rouges pixel 210, green light pixel 220 and blue light pixel 230 to shine.
Feux rouges pixel 210 issue feux rouges, green light pixel 220 issue green light, blue light pixel 230 issue blue light, by it is red,
The display of green, blue three primary colours realizes colored display to be superimposed out various colors.
Above-mentioned feux rouges pixel 210 is including multiple, and illustratively, multiple feux rouges pixels 210 are arranged in array-like.Green light pixel
220 including multiple, and illustratively, multiple green light pixels 220 are arranged in array-like.Blue light pixel 230 is exemplary including multiple
, multiple blue light pixels 230 are arranged in array-like.
Illustratively, feux rouges pixel 210 includes the anode being cascading, hole injection layer, hole transmission layer, shines
The 240, first quantum dot layer 250 of layer, electron transfer layer, electron injecting layer and cathode, wherein the first quantum dot layer 250 can will be sent out
The light that photosphere 240 is issued is converted to feux rouges.
Illustratively, green light pixel 220 includes the anode being cascading, hole injection layer, hole transmission layer, shines
The 240, first quantum dot layer 250 of layer, electron transfer layer, electron injecting layer and cathode, wherein the first quantum dot layer 250 can will be sent out
The light that photosphere 240 is issued is converted to green light.
Illustratively, blue light pixel 230 includes the anode being cascading, hole injection layer, hole transmission layer, shines
Layer 240, electron transfer layer, electron injecting layer and cathode, wherein luminescent layer 240 can issue blue light.
As depicted in figs. 1 and 2, in the present embodiment, it can be feux rouges pixel 210 and include luminescent layer 240 and can will send out
The light that photosphere 240 is issued is converted to the first quantum dot layer 250 of feux rouges；Luminescent layer 240 in green light pixel 220 can issue
Green light；Luminescent layer 240 in blue light pixel 230 can issue blue light.Be provided in encapsulated layer 300 in feux rouges pixel 210
Second quantum dot layer 310 corresponding to first quantum dot layer 250.
Alternatively, being also possible to green light pixel 220 includes that luminescent layer 240 and the light that can be issued luminescent layer 240 turn
It is changed to the first quantum dot layer 250 of green light；The luminescent layer 240 of feux rouges pixel 210 can issue feux rouges；In blue light pixel 230
Luminescent layer 240 can issue blue light.Be provided in encapsulated layer 300 with corresponding to the first quantum dot layer 250 in green light pixel 220
The second quantum dot layer 310.
Or it can also be that feux rouges pixel 210 includes luminescent layer 240 and the light that can be issued luminescent layer 240
Be converted to the first quantum dot layer 250 of feux rouges；Green light pixel 220 includes luminescent layer 240 and can be issued luminescent layer 240
Light be converted to the first quantum dot layer 250 of green light；Luminescent layer 240 in blue light pixel 230 can issue blue light.Encapsulated layer
It is provided in 300 and the second quantum dot layer 310 corresponding to the first quantum dot layer 250 in green light pixel 220, encapsulated layer 300
In be additionally provided with and the second quantum dot layer 310 corresponding to the first quantum dot layer 250 in feux rouges pixel 210.
This field conventional means can be used in the formation of first quantum dot layer 250, for example by quantum dot or can contain quantum
The mixture of point is arranged on the light-emitting surface of luminescent layer 240 by modes such as vacuum deposition, coating or printings, and quantum is formed
Point film is dispersed with the film of quantum dot, and quantum dot film or is dispersed with the thickness of film of quantum dot and generally can be controlled in
Nanoscale avoids quantum dot arrangement light that is excessively intensive and causing quantum dot to be issued from being hindered by adjacent quantum dot.
It is appreciated that ensure that the light that luminescent layer 240 is issued can be abundant by the quantum dot in the first quantum dot layer 250
It absorbs and conversion, the first quantum dot layer 250 should cover luminescent layer 240 completely.
Alternatively, the first amount can be formed while forming luminescent layer 240 by quantum dot-doped in luminous organic material
Son point layer 250, i.e. luminescent layer 240 are also used as the first quantum dot layer 250 simultaneously.
As described above, the second quantum dot layer 310 is corresponding with the first quantum dot layer 250 in the present embodiment, refer to luminescent layer
240 light issued, can be by the second quantum dot layer 310 when using encapsulated layer 300 after the conversion of the first quantum dot layer 250
Further conversion, so as to obtain the light of high color purity.
With further reference to Fig. 1 and Fig. 2, by taking feux rouges pixel 210 as an example, feux rouges pixel 210 includes luminescent layer 240 and the first amount
Son puts layer 250, is provided with second quantum dot layer 310 corresponding with the first quantum dot layer 250 in encapsulated layer 300.In this way, shining
240 light (such as blue light) that is issued of layer first pass around the conversion of the first quantum dot layer 250, in obtained feux rouges inevitably
Containing a small amount of blue light, this some blue light continues to be converted to feux rouges when passing through the second quantum dot layer 310, to finally obtain high
The feux rouges of excitation purity.
Encapsulated layer 300 in the present embodiment can improve on the basis of conventional package.Such as encapsulated layer
300 be encapsulation cover plate, and the second quantum dot layer 310 is arranged in encapsulation cover plate.Encapsulated layer 300 is thin-film encapsulation layer for another example, the
Two quantum dot layers 310 are arranged in thin-film encapsulation layer.
Please further refer to Fig. 1, encapsulated layer 300 can specifically include the organic film 320 and inorganic film being arranged alternately
330 (are otherwise known as ceramic film).In some specific examples of the present embodiment, the second quantum dot layer 310 is arranged a certain organic
In film layer 320.
In other specific examples of the present embodiment, the second quantum dot layer 310 is arranged in two or more organic films
In 320, for example it is arranged in some organic film 320 with the second quantum dot layer 310 corresponding to feux rouges pixel 210, and it is green
Second quantum dot layer 310 corresponding to light pixel 220 is arranged in another organic film 320.
In the still other specific example of the present embodiment, adjacent organic film 320 and nothing is arranged in the second quantum dot layer 310
Between machine film layer 330.For example the second quantum dot layer 310 can be formed on 330 surface of an inorganic film first, then in the second quantum
Point 310 surface of layer continuously forms an organic film 320, and the organic film 320 covers the second quantum dot layer 310 and inoranic membrane
The region that layer 330 is not covered by the second quantum dot layer 310.
Please further refer to Fig. 2, the second quantum dot layer 310 can be two or more layers, i.e., be equipped in encapsulated layer 300 with
Corresponding multiple second quantum dot layers 310 of first quantum dot layer 250.For example, encapsulated layer 300 includes the organic film being arranged alternately
320 and inorganic film 330, second quantum dot layer 310 is set in wherein certain several organic film 320.
For being equipped with the first quantum dot layer 250 in feux rouges pixel 210, set in two or more organic films 320
It is equipped with the second quantum dot layer 320, converts the light that luminescent layer 240 is issued in feux rouges pixel 210 through the first quantum dot layer 250
Afterwards, it is further continued for the conversion by two or more the second quantum dot layers 310, obtains the higher feux rouges of excitation purity.
As the present embodiment preferred embodiment, orthographic projection covering of second quantum dot layer 310 in array substrate 100
Orthographic projection of first quantum dot layer 250 in array substrate 100 avoids light leakage, thus finally to realize the abundant conversion of light
Obtain the feux rouges and/or green light of high color purity.
Further, frontal projected area of second quantum dot layer 310 in array substrate 100 is greater than the first quantum dot layer
250 frontal projected area in array substrate 100, to ensure that the light from oled layer can pass through the second quantum dot as far as possible
Layer 310, further avoids light leakage.
Display panel provided by the present embodiment is being encapsulated by the way that the first quantum dot layer 250 is arranged in oled layer 200
Corresponding with the first quantum dot layer 250 second quantum dot layer 310 of setting in layer 300, so as to will be not by the first quantum dot
The light that layer 250 is converted is further converted into pre-set color, the final feux rouges and/or green light for obtaining high color purity, can not only
The colored display quality of organic light emitting diodde desplay device is improved, while converting photons efficiency and energy benefit can also be improved
With rate.
Further, since the second quantum dot layer 310 is arranged in encapsulated layer 300, and encapsulating structure is not significantly changed, compared to
The technical solution of colored display quality, the present embodiment institute are improved by installing optical filter or other filtering structures additional in the prior art
The display panel of offer has thinner thickness, conducive to the lightening of OLED display panel is realized.
Embodiment two
It is to improve on the basis of example 1, the present embodiment is not described the present embodiment provides a kind of display panel
Part is identical as previous embodiment one.
Please refer to display panel provided by Fig. 3, Fig. 4 and Fig. 5 and combined with Figure 1 and Figure 2, the present embodiment, feux rouges pixel 210
Including blue light-emitting 241 and the first red light quantum point layer 251 of feux rouges can be converted blue light into；Green light pixel 220 is wrapped
It includes blue light-emitting 241 and the first green light quantum point layer 252 of green light can be converted blue light into；
Second quantum dot layer 310 includes second red light quantum point layer 311 corresponding with the first red light quantum point layer 251, with
And second green light quantum point layer 312 corresponding with the first green light quantum point layer 252.
In the present embodiment, feux rouges pixel 210 and green light pixel 220 are all made of blue light-emitting 241 and are used as back end light source.Tool
Body, feux rouges pixel 210 includes blue light-emitting 241 and the first red light quantum point layer 251, and the second quantum dot layer 310 includes the
Two red light quantum point layers 311, the second red light quantum point layer 311 are corresponding with the first red light quantum point layer 251.By blue light-emitting
241 blue lights issued are converted to feux rouges by the first red light quantum point layer 251 first, and the blue light that do not converted on a small quantity is passing through
When encapsulated layer 300, by the second further conversion of red light quantum point layer 311, to obtain the feux rouges of high color purity.Similarly, for
Green light pixel 220, the blue light that blue light-emitting 241 is issued successively pass through the first green light quantum point layer 252 and the second green light amount
The conversion of son point layer 312, finally obtains the green light of high color purity.And for blue light pixel 230, blue light-emitting 241 is sent out
Blue light out is not converted directly to be projected via encapsulated layer 300.The display of red, green, blue three primary colours is thereby realized, thus folded
Add various colors out, the final colored display for realizing high-quality.
With further reference to Fig. 3 to Fig. 5, as a kind of preferred embodiment of the present embodiment, the second red light quantum point layer 311
Orthographic projection of the first red light quantum point layer 251 in array substrate 100 is covered in the orthographic projection in array substrate 100.Namely
It says, feux rouges pixel 210 is arranged in along the surface of light direction in the second red light quantum point layer 311, and the second red light quantum point layer
311 at least should be not less than the first red light quantum point layer 251 in array substrate 100 in the frontal projected area in array substrate 100
Frontal projected area, to ensure blue light-emitting 241 is issued in feux rouges pixel 210 blue light through the first red light quantum point layer
Obtained light (including most feux rouges and small part blue light) can pass through the second red light quantum point layer after 251 conversions
311, to obtain the higher feux rouges of purity, it can not only be further ensured that the quality of colored display, and can further mention
The utilization rate of high blue photons.
Similarly, orthographic projection of the second green light quantum point layer 312 in array substrate 100 is preferably able to the first green light amount of covering
Orthographic projection of the son point layer 252 in array substrate 100, to obtain the higher green light of purity, and improves the utilization of blue photons
Rate.
Please further refer to Fig. 3 and Fig. 4, in display panel provided by the present embodiment, encapsulated layer 300 be can specifically include
The organic film 320 and inorganic film 330 being arranged alternately, the second quantum dot layer 310 can be set in organic film 320.
As shown in figure 3, in some instances, the second red light quantum point layer 311 and 312 same layer of the second green light quantum point layer are set
It sets, i.e. the second red light quantum point layer 311 and the second green light quantum point layer 312 are arranged in same layer organic film 320, especially
It is that can be set in the organic film 320 for being closer to oled layer 200, to avoid feux rouges pixel 210 and green light pixel 220
The light issued is after it have passed through multilayer organic film 320 and inorganic film 330 because of the light conversion ratio caused by scattering
The problem of reduction.
Specifically, one layer of inoranic membrane can be obtained according to the traditional machining processes of current OLED encapsulating structure, first processing
Layer 330, then forms an organic film 320, secondly by patterned process, in organic film on the surface of inorganic film 330
The first opening and the second opening are opened up on layer 320, wherein the first opening is corresponding with the first red light quantum point layer 251, the second opening
It is corresponding with the first green light quantum point layer 252.Then red light quantum point is entrained in organic material or inorganic material, what is obtained is mixed
Condensation material is injected into the first opening by inkjet printing or in a manner of under mask plate protection coat etc., then cured, is formed
Second red light quantum point layer 311.Second green light quantum point layer 312 is formed in the second opening, specific generation type and second
The generation type of red light quantum point layer 311 is similar, does not repeat.
As shown in figure 4, in other examples, the second red light quantum point layer 311 and the different layer of the second green light quantum point layer 312
Setting, i.e. the second red light quantum point layer 311 are arranged in a certain organic film 320, and the second green light quantum point layer 312 is arranged another
In one organic film 320.The generation type and aforementioned exemplary of second red light quantum point layer 311 and the second green light quantum point layer 312
It is essentially identical, it does not repeat.
As shown in figure 5, the second quantum dot layer 310 is arranged in organic film 320 and inorganic film in other examples
Between 330.For example one layer of inorganic film can be obtained according to the traditional machining processes of current OLED encapsulating structure, first processing
330, the second quantum dot layer 310 is then formed on 330 surface of inorganic film, secondly on 310 surface of the second quantum dot layer and not
Organic film 320 and inorganic film 330 are continuously formed by 330 surface of inorganic film that the second quantum dot layer 310 covers.
The formation of above-mentioned second quantum dot layer 310 can be quantum dot and organic monomer, prepolymer, mixed with polymers
Afterwards, by modes such as rotary coatings, mixture is coated in 320 surface of organic film, then formed through heat cure or photocuring
One layer of thin polymer film for being dispersed with quantum dot obtains the second quantum dot layer 310 then by patterned process.For saving
The considerations of quantum dot raw material, can also form one on 330 surface of inorganic film by modes such as mask plate protection or inkjet printings
Layer is dispersed with the thin polymer film of quantum dot, as the second quantum dot layer 310.
Embodiment three
It is to improve on the basis of example 1, the present embodiment is not described the present embodiment provides a kind of display panel
Part is identical as previous embodiment one.
As shown in Figure 6 and Figure 7, display panel provided in this embodiment, feux rouges pixel 210 include white-light emitting layer 242
And white light can be converted to the first red light quantum point layer 251' of feux rouges；Green light pixel 220 include white-light emitting layer 242 with
And white light can be converted to the first green light quantum point layer 252' of green light；
Second quantum dot layer 310 includes second red light quantum point layer 311' corresponding with the first red light quantum point layer 251',
And second green light quantum point layer 312' corresponding with the first green light quantum point layer 252'.
Specifically, feux rouges pixel 210 includes white-light emitting layer 242 and the first red light quantum point layer 251', in encapsulated layer 300
Equipped with second red light quantum point layer 311' corresponding with the first red light quantum point layer 251'.It is issued by white-light emitting layer 242
White light is converted to feux rouges by the first red light quantum point layer 251' first, and the white light that do not converted on a small quantity is passing through encapsulated layer 300
When, it is further converted by the second red light quantum point layer 311', to obtain the feux rouges with high color purity.Similarly, green light pixel
The white light that 220 white-light emitting layer 242 is issued successively passes through the first green light quantum point layer 252' and the second green light quantum point layer
The conversion of 312' finally obtains the green light with high color purity.And for blue light pixel 230, luminescent layer 240 can directly be sent out
Out blue light and pass through encapsulated layer 300 when directly project.The display of red, green, blue three primary colours is thereby realized, to be superimposed out each
Kind color realizes the colored display of high-quality.
Further, blue light pixel 230 also may include white-light emitting layer 242 and white light can be converted to blue light
First blue light quantum point layer 253' is additionally provided with the second blue light amount corresponding with the first blue light quantum point layer 253' in encapsulated layer 300
Son point layer ', the blue light of high color purity can be obtained in this way, further increase the quality and white light utilization rate of colored display.
As a kind of preferred embodiment of the present embodiment, the second red light quantum point layer 311' is in array substrate 100
Orthographic projection covers orthographic projection of the first red light quantum point layer 251' in array substrate 100.That is, the second red light quantum point
Feux rouges pixel 210 is arranged in along the surface of light direction in layer 311', and the second red light quantum point layer 311' is in array substrate 100
On frontal projected area at least should be not less than frontal projected area of the first red light quantum point layer 251' in array substrate 100, this
Sample can ensure white light that white-light emitting layer 242 the is issued obtained light after the first red light quantum point layer 251' conversion as far as possible
Coloured silk can not only be further ensured that obtain the higher feux rouges of excitation purity by the second red light quantum point layer 311'
The quality that color is shown, and white light utilization rate can be further increased.
Similarly, orthographic projection of the second green light quantum point layer 312' in array substrate 100 is preferably able to the first green light of covering
Orthographic projection of the quantum dot layer 252' in array substrate 100, to obtain the higher green light of purity and further increase white light benefit
With rate.
Orthographic projection of the blue light quantum point layer 315 in array substrate 100 preferably covers blue light quantum point unit 255 in array
Orthographic projection on substrate 100, to obtain the higher blue light of purity and further increase white light utilization rate.
With further reference to Fig. 6, illustratively, the second red light quantum point layer 311', the second green light quantum point layer 312' and
The setting of two blue light quantum point layer 313' same layer.For example encapsulated layer 300 can specifically include the organic film 320 of alternately laminated setting
With inorganic film 330, the second red light quantum point layer 311', the second green light quantum point layer 312' and the second blue light quantum point layer 313'
It is arranged in same organic film 320.
An inorganic film 330 is obtained specifically, can process first, is then formed on its surface an organic film 320, with
Afterwards by patterned process, the first opening, the second opening and third opening are opened up on organic film 320, wherein the first opening
, second opening corresponding with the first red light quantum point layer 251' with the first green light quantum point layer 252' be corresponding, third opening with
First blue light quantum point layer 253' is corresponding.Secondly by the mixing material containing red light quantum point by inkjet printing or in exposure mask
It carries out the mode such as coating under plate protection and be injected into the first opening, form the second red light quantum point layer 311', green light amount will be contained
The mixing material of son point is injected into the second opening, forms the second green light quantum point layer 312', will be mixed containing blue light quantum point
Condensation material is injected into third opening, forms the second blue light quantum point layer 313'.
The above-mentioned mixing material containing quantum dot, specifically can be by mixing quantum dot and monomer, prepolymer or polymer
Conjunction obtains, and mixing material finally obtains corresponding second quantum dot layer 310 by modes such as heat cure or photocurings.
With further reference to Fig. 7, the second red light quantum point layer 311', the second green light quantum point layer 312' and the second blue light quantum
Point layer 313' can be not arranged in same layer.Such as second red light quantum point layer 311' be arranged in an organic film 320, second
Green light quantum point layer 312' and the second blue light quantum point layer 313' is arranged in another organic film 320.Three is respectively for another example
Be arranged in different organic films 320, specific generation type with it is aforementioned similar, do not repeat.
Example IV
The present embodiment provides a kind of display devices can also basis including display panel described in previous embodiment
Actual needs, further comprises the components such as touch screen, frame.
Display device provided by the present embodiment, due to including the display panel in above-described embodiment, compared to
Existing display panel has higher colored display quality.And compared to the prior art in by install additional optical filter compare, also drop
The low thickness of display device.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of display panel, which is characterized in that including array substrate, the organic light-emitting diodes being arranged in the array substrate
Pipe oled layer, and the encapsulated layer of the covering oled layer, in which:
The oled layer includes feux rouges pixel, green light pixel and blue light pixel, and at least one in feux rouges pixel and green light pixel
With luminescent layer and the light that the luminescent layer is issued can be converted into the first quantum dot layer of pre-set color light；
The second quantum dot layer corresponding with first quantum dot layer is equipped in the encapsulated layer.
2. display panel according to claim 1, which is characterized in that second quantum dot layer is in the array substrate
Orthographic projection cover orthographic projection of first quantum dot layer in the array substrate.
3. display panel according to claim 1, which is characterized in that the encapsulated layer includes the organic film being arranged alternately
And inorganic film, second quantum dot layer are arranged in the organic film.
4. display panel according to claim 1-3, which is characterized in that the feux rouges pixel includes blue light emitting
Layer and the first red light quantum point layer that feux rouges can be converted blue light into；The green light pixel includes blue light-emitting and energy
Enough convert blue light into the first green light quantum point layer of green light；
Second quantum dot layer includes the second red light quantum point layer corresponding with the first red light quantum point layer, and with institute
State the corresponding second green light quantum point layer of the first green light quantum point layer.
5. display panel according to claim 4, which is characterized in that the second red light quantum point layer and described second green
The setting of light quanta point layer same layer or the setting of different layer.
6. display panel according to claim 1-3, which is characterized in that the feux rouges pixel includes white-light emitting
Layer and the first red light quantum point layer that white light can be converted to feux rouges；The green light pixel includes white-light emitting layer and energy
Enough the first green light quantum point layers that white light is converted to green light；
Second quantum dot layer includes the second red light quantum point layer corresponding with the first red light quantum point layer, and with institute
State the corresponding second green light quantum point layer of the first green light quantum point layer.
7. display panel according to claim 6, which is characterized in that the blue light pixel includes white-light emitting layer and energy
Enough the first blue light quantum point layers that white light is converted to blue light；It is additionally provided in the encapsulated layer and the first blue light quantum point layer
Corresponding second blue light quantum point layer.
8. display panel according to claim 7, which is characterized in that the second blue light quantum point layer is in the array base
Orthographic projection on plate covers orthographic projection of the first blue light quantum point layer in the array substrate.
9. display panel according to claim 7 or 8, which is characterized in that the second red light quantum point layer, the second green light
Quantum dot layer and the setting of the second blue light quantum point layer same layer.
10. a kind of display device, which is characterized in that including the described in any item display panels of claim 1-9.
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